My experience working with a lot of international people (H-1B, etc) is just that in general the people I have worked with have been highly-motivated, hard working, and fantastic people to work with in general. Bringing more people like this into the country I think is just good for society and good for the culture. Any statistical disadvantage it may create for me (salary-related, job competition, etc) I am just not concerned about. I think these concerns tend to be overstated.